Core-shell SrTiO3/graphene structure by chemical vapor deposition for enhanced photocatalytic performance

Direct growth of high quality graphene on the surface of SrTiO3 (STO) was realized through chemical vapor deposition (CVD), to construct few-layer 'graphene shell' on every STO nanoparticle. The STO/graphene composite shows significantly enhanced UV light photocatalytic activity compared with the STO/rGO reference. Mechanism analysis confirms the role of special core-shell structure and chemical bond (Ti-C) for rapid interfacial electron transfer and effective electron-hole separation. (C) 2017 Elsevier B.V. All rights reserved.